A great, enjoyable afternoon and small JA3-EME-Meeting happened in Kyoto / Japan today with my friends (left to right) Taka-san JP3EXR (2m EME), Koji-san JE3GRQ (6m/2m EME), myself and Kay-san JH3AZC (2m/23cm EME).
Category Archives: EME
2024 Tokyo Ham Fair
In addition to the large amateur radio fairs in Friedrichshafen / Germany and Dayton / USA, the Tokyo Ham Fair in Japan is by far the largest of these exhibitions. In 2024, it recorded a new record with around 45,000 visitors.
I had long planned to travel to Japan and visit the Ham Fair. This year, it finally worked out. The new exhibition hall “ARIAKE GYM-EX” is located directly on the Pacific and is convenient and easy to reach by public transport.
The following pictures give a small impression of this great exhibition.
It was a great pleasure for me to meet many well-known DX’ers in person and to make new friends.
See you in Tokyo or see you again on one of the amateur radio bands.
Every long road comes to an end – DXCC 144 MHz
How it all began …
A long time ago, sometime in 1980, I observed my friend Fritz Herbst near Hanover, DL3YBA, doing echo tests on 144 MHz via the moon with his huge antenna array. At that time, of course, there were no digital modes of operation, telegraphy was the way to go. I used a 16 element Yagi from Tonna (F9FT), that was state of the art. Of course I didn’t hear His echoes, but it got me interested in EME (Earth-Moon-Earth) experiments.
Time passed and many unsuccessful attempts followed. Then on April 03, 1982, the moon was close to the western horizon, I suddenly heard the CW signals from Dave K1WHS – unbelievable!. At that time he had the largest 2m system in the world with 24 x 14 antennas. I called him in CW with my 500W into the 16 Element and .. whooow .. we made a QSO! Unfortunately, this was to remain my first and only EME contact for many years.
In 1988 there was another EME contact with Dave, W5UN in Texas (holder of 2m DXCC #1). With his superstation of 32 x 17 element he made an incredible signal via the moon. But then the game of 2m EME was over for me. With just one antenna it was not possible to work others beside those two Superstations and there was no space for a group of four yagis on our property.
When I got home, a new antenna was ordered, I decided on a 14 element Yagi from AnjoAntennen with a length of 6.7m and a gain of 13.5 dBi. A short steel pipe was concreted in the garden, the rotor was put on and the Yagi was fastened. Despite the short cable of about 15m, I mounted a preamplifier (HA8ET) near the feedpoint. When Beko’s SSPA arrived, things could get going. In the meantime, the EME world could not be imagined without the digital operating mode JT65 from K1JT and that was a quantum leap compared to telegraph operations. On August 26, 2017, I finally got going with just one antenna into the new EME world. I had set myself the goal of working a total of 10 different stations. To anticipate, that was already done on the second day. The target was revised upwards and upwards, 100 stations, 250 stations, DXCC! Nevertheless, EME with only one antenna is a hard way and in a pileup you are always the very last in the long line of callers. Of course there were setbacks at the beginning and a lot of new things to learn. In the first few months things progressed quickly, many new DXCC countries entered the log. However, due to the Covid crisis, these stopped in 2020 and a long boring periode began. Then finally, on November 12, 2022, a QSO with ZC4RH succeeded and the long-cherished dream – my 144 MHz DXCC Award was completed!
CY0S – 2m EME – DXCC #101
Back in 2019 Lee, WW2DX, and Team activated the rare DXCC St. Paul Island on 144 MHz via EME under the callsign CY9C.
This year Sable Island was his destination, CY0S the callsign. With the proven equipment of 2 x 9 Element Hpol and Amplifier, Lee was in the air for a few days. The moon was not in a favourable position but after the first rush of callers was over, I managed to get a contact and my DXCC #101 on 144 MHz was in the book. Thanks Lee for another great QSO!
(Picures courtesy of CY0S-Team)
ZC4RH – 2m EME – DXCC #100
Today a big dream came true: the 100th country on 144 MHz is in the book. It was a long and rocky road, but time and effort paid off. It’s only the 3rd time a single yagi station has reached this mark (as far as I’ve researched). Many thanks to the team at ZC4RH (Dave, Chris and Jos) for their effort and contact via EME!
(Picures courtesy of PA2CHR / PA3FYC / ZC4RH)
D2TX – 2m EME
Bernie (ZS4TX), known for his previous activations of A21EME, 7P8Z, 3DA0MB, 3B8/ZS4TX, started another “One Man” DX-Pedition in late August 2022. The goal this time was the Cuando-Cubango Province in Angola. This was Angola’s first 2m EME activation to date and a nearly 7,000 km round trip for ZS4TX.
Bernie’s Equipment for 2m were 2x 2M18XXX and IC-9700. Due to difficult weather conditions, Bernie had to stop activity after only 4 days. Nevertheless, I managed to complete a nice QSO and that’s DXCC #99 in the log.
Thanks to Bernie for another contact and the great activation!
(Picture courtesy of ZS4TX)
Meeting EA1IW
During my holiday in Northern Spain I had the opportunity to visit my radio friend Toni, EA1IW, and his family in Vargas. We had interesting technical talks and a good time together. Thank you Toni and see you soon over the moon!
2021 ARRL EME-Contest
A few days ago, the ARRL published the results of the “ARRL International EME Contest 2021”. Although I only took part in a total of 10.2 hours, I finished 20th out of a total of 50 participants in the “Single Operator, All Mode, 1.2 GHz” category.
This is a gratifying result for me as I only have a small 1.75m dish and a limited moon window. A total of 60 contacts were logged, 12 of them in CW. Highlights beside many others are the CW contacts with DU3T and KL6M, two new DXCC on 23cm.
Detailed results are available here https://contests.arrl.org/scores.php
Worked All Continents – WAC 1296 MHz
Another milestone in my 48 years of Ham Radio: After WAC 432 MHz (1983) and WAC 144 MHz (2018), the WAC 1296 MHz arrived today. Of all these it was the fastest and all Continents were in the log after just 2 months of activity.
Finally – 23cm EME running
The next step in my moonbounce activities has been reached: 23cm!
Many years ago I got this beautiful 1.8m full-size dish and it was lying around uselessly. Hey, 1.8m diameter is a bit small for EME, but why not give it a try? 1296 MHz would be nice and at least the big guns should be heard. To make the long story short: After a few setbacks, measurements and optimizations, the time had finally come and on May 26, 2020, the first contact with UA3PTW was complete. Now, after a week there are 32 different stations in the log, 5 continents have been reached and even two nice QSO’s in CW. My expectations were more than exceeded and now it is time to optimize further details.
See you off the moon!